Exhaust gas sensor diagnosis and controls adaptation
US9169795B2 · kind B2 · utility
15Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Jan 19, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/1432
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for adjusting an anticipatory controller of an exhaust gas sensor coupled in an engine exhaust. In one embodiment, the method comprises adjusting fuel injection responsive to exhaust oxygen feedback from the anticipatory controller of the exhaust gas sensor and adjusting one or more parameters of the anticipatory controller responsive to a type of oxygen sensor degradation. In this way, the anticipatory controller may be adapted based on the type and magnitude of the degradation behavior to increase performance of the air-fuel control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.